Circles
/**
* Copyright termat ( http://wonderfl.net/user/termat )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/rcdF
*/
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
[SWF(width = "480", height = "480", backgroundColor = "0xffffff", fps = "60")]
public class Practice75 extends Sprite{
private var list:Array;
private var id:int = 0;
public function Practice75() {
list = new Array();
addEventListener(Event.ENTER_FRAME, update);
}
private function update(e:Event):void {
graphics.clear();
var c:Circle = new Circle();
c.x = mouseX;c.y = mouseY;
c.radius = 1;
c.color = getColor(id, 1.0);
id = (id+1) % 360;
list.push(c);
for (var i:int = 0; i < list.length; i++) {
var obj:Circle = list.shift();
obj.draw(graphics);
if (obj.radius < 480) list.push(obj);
}
}
private function getColor(i:int, saturation:Number):uint {
var h:Number = i / 60;
var ii:Number = Math.floor(h);
var ff:Number = h - ii;
var p1:Number = (1.0 - saturation);
var p2:Number = (1.0 - saturation * ff);
var p3:Number = (1.0 - saturation * (1.0 - ff));
var rv:Number, gv:Number, bv:Number;
switch(ii) {
case 0:
rv = 1.0, gv = p3, bv = p1;
break;
case 1:
rv = p2, gv = 1.0, bv = p1;
break;
case 2:
rv = p1, gv = 1.0, bv = p3;
break;
case 3:
rv = p1, gv = p2, bv = 1.0;
break;
case 4:
rv = p3, gv = p1, bv = 1.0;
break;
default:
rv = 1.0, gv = p1, bv = p2;
}
var color:uint = (Math.max(0, Math.min(255, rv * 255)) << 16) + (Math.max(0, Math.min(255, gv * 255)) << 8) + Math.max(0, Math.min(255, bv * 255));
return color;
}
}
}
import flash.display.MovieClip;
import flash.display.Graphics;
class Circle{
public var x:Number = 0;
public var y:Number = 0;
private var width:Number = 2;
public var radius:Number = 1;
public var color:uint = 0x000000;
public var alpha:Number = 1.0;
public function draw(g:Graphics):void {
g.lineStyle(width, color);
g.drawCircle(x, y, radius);
radius += 4;
alpha *= 0.9;
}
}